AP PSYCHOLOGY

Detailed explanation-1: -The early portion of stage 1 sleep produces alpha waves, which are relatively low frequency (8–13Hz), high amplitude patterns of electrical activity (waves) that become synchronized (Figure SC. 8). This pattern of brain wave activity resembles that of someone who is very relaxed, yet awake.

Detailed explanation-2: -Stage N2: Theta Waves, Sleep Spindles, and K-Complexes Theta waves are one of the three characterizing traits of stage N2. Although theta waves dominate our brain activity, they are regularly interrupted by sleep spindles.

Detailed explanation-3: -THETA (4-8 Hz) Theta waves are strong during internal focus, meditation, prayer, and spiritual awareness. It reflects the state between wakefulness and sleep and relates to the subconscious mind. It is abnormal in awake adults but is perfectly normal in children up to 13 years old. It is also normal during sleep.

Detailed explanation-4: -You then begin to sleep if you enter non-REM Stage 1. This is when Alpha waves get replaced primarily with theta waves. As you continue to non-REM stage 2, you still have theta waves, but now you also have sleep spindles and k-complexes. In non-REM stage 3, this is dominated by delta waves.